#21933 closed Uncategorized (invalid)
UnicodeDecodeError when writing unicode to stdout of management command
Reported by: | synotna | Owned by: | nobody |
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Component: | Uncategorized | Version: | 1.8 |
Severity: | Normal | Keywords: | |
Cc: | Triage Stage: | Unreviewed | |
Has patch: | no | Needs documentation: | no |
Needs tests: | no | Patch needs improvement: | no |
Easy pickings: | no | UI/UX: | no |
Description (last modified by )
In a management command, if you include unicode characters when writing to stdout (with self.stdout.write) you will get a UnicodeDecodeError
This happens even if the system locale is utf-8, and self.stdout.encoding is utf-8, and you .decode(self.stdout.encoding,'replace')
A workaround is to always .decode() to ascii, and if that is what should be done it should be documented at https://docs.djangoproject.com/en/dev/howto/custom-management-commands/
/myapp/management/commands/unicode_test.py
# -*- coding: utf-8 -*- from django.core.management.base import BaseCommand class Command(BaseCommand): args = '<none>' help = 'Do something' def handle(self, *args, **options): output = u'Σάββα▒^▒ο' self.stdout.write('Output: {}'.format(output))
Traceback (most recent call last): File "manage.py", line 10, in <module> execute_from_command_line(sys.argv) File "/home/tech/.pyenv/versions/esldj-all-in-one-2.7.6/lib/python2.7/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line utility.execute() File "/home/tech/.pyenv/versions/esldj-all-in-one-2.7.6/lib/python2.7/site-packages/django/core/management/__init__.py", line 392, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/home/tech/.pyenv/versions/esldj-all-in-one-2.7.6/lib/python2.7/site-packages/django/core/management/base.py", line 242, in run_from_argv self.execute(*args, **options.__dict__) File "/home/tech/.pyenv/versions/esldj-all-in-one-2.7.6/lib/python2.7/site-packages/django/core/management/base.py", line 285, in execute output = self.handle(*args, **options) File "/home/tech/esldj/all-in-one/go4/management/commands/unicode_test.py", line 10, in handle self.stdout.write('Output: {}'.format(output)) File "/home/tech/.pyenv/versions/esldj-all-in-one-2.7.6/lib/python2.7/site-packages/django/core/management/base.py", line 65, in write if ending and not msg.endswith(ending):
Change History (5)
comment:1 by , 11 years ago
Resolution: | → invalid |
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Status: | new → closed |
comment:2 by , 8 years ago
Description: | modified (diff) |
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Resolution: | invalid |
Status: | closed → new |
Version: | 1.6 → 1.8 |
comment:4 by , 8 years ago
Resolution: | → invalid |
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Status: | new → closed |
My bad - the issue does exist, but the example code here doesn't properly demonstrate it.
Your
output
attribute in the above code example should be prefixed byu
.